William j



DOOR HANGER.

No. 575,771. Patented Jan. 26, 1897.

UNITED STATES PATENT FFICE.

WVILLIAM J. SUMNER, OF HOLYOKE, MASSAOHUSETTS, ASSIGNOR TO THE COBURNTROLLEY TRACK MANUFACTURING COMPANY, OF SAME PLAOE.

DOOR-HANGER.

SPECIFICATION forming part of Letters Patent NO. 57 5,7 '71, datedJanuary 26, 1897.

Applieation filed March 25, 1896. Serial ITo. 584,783. (No model.)

T all whom it may concern: in plan view in Fig. 3, and secured byscrews, Be it known that I VVILLIAM J. SUMNER, a as shown, on ppositesides of a hole through citizen of theUnited States of America,residsaid plate H. The said plate H is perforated, ing at Holyoke, inthe county of Harnpden and as aforesaid, 130 let the l0werscrew-threaded 5 5 State of Massachusetts, have invented new end of thehanger D pass freely through it. and useful Improvements in Adj usl-ableTrol- WVithin or between said lugs J and restrained ley-Hangers, ofwhich the following is aspecifron1 downward movement thereby is acirfication. cular hearing-nut K, having a concentric This inventionrelates t0 trolley-hangers f0r groeve in its upper face, which groove is[0 supporting doors and similar objects on a cated oppositea like groovein the adjoining track whereby they are easily moved to and under sideof said plate H. Bearing-balls n fr0, the object beinp; to provideimproved conare placed between said nut and. plate H and necbionsbetween said hanger and. the supwithin said concentric grooves. Thesehalls ported object whereby the hanger is made prevent any upwardmovement of the nut 15 self-adjusting axially and the trolley-wheel K byhearing directly againss it and the plate is constantly free to followthe direction of H, andthe lugs J prevent eitl1er lateral 01 the trackon which it runs, thereby avoiding downward movement by catching againstthe frictional contact with said track; and. the innut on ibs edges andlower side. The consevention consists in the construction and arquenceis the door is held with j ust sufficient zo rangernent of the devicesconnecting the rigidity to enable it to move freely and. yet hanger t0said supported object, all as hereprevent it from having anyunnecessaryplay. inafterfully described, and more particularly Said nutK is provided With spanner-holes s pointed out; in the claims. in itsperiphery, whereby it is, by the use of:

In the drawings forming part of this speciasuitable implement, turned011 said hanger 25 fication, Figure 1 is a side 61(3V2t17l011, partlyIJ0 adjustit properly toward said plate Hand in secnion, of a part ofthe upper end of a relative t0 said ballsn therebetween. Acirdoor and apart of a trolley-track having trolcular set-11u13 '12 is screwed ontothe lower end ley-hanger devices applied theret o e1nbodyof said hangerand against the under side of ing my improvements. Fig. 2 is an endelesaid uut K by means of a suizable implement 30 vation of thetrolley-track, showing the trolinserted int0 spanner-holes 00 in theperphley-wheels and a part of the hanger connected ery of said set-nut,and thereby said nut K is therewith. Fig. 3 is a plan view of detailheld against rotation en thesaid hanger, and parts hereinafter descrbed.is S0 en gaged With the latter hbl i'u must sake In the drawings,Aindicates a longitudinal up such degree of rotary movernenb as may 35sectiou of a trolley-track, of which B is one be imparted 00 said hangerby the action of of the runWays or track. the trolley-wheels against thesides of the D is the trolley-hanger. e e are the trolleytracks B inwhich they run. Thus if the track wheels hung' on the upper end of saidhanger A be curved ohe hanger may freely turn, if by a sl1aft F on whichsaid wheels are fixed. need be, in its said connection With the door 040 Balls or rollers a are preferably applied E, thereby causing thetrolley-wheel shaftF aroundsaid shaft to provide an approximately 120maintain a position constantly at right frictionless hearing therefor.Fig. 2 illusangles to the said tracks B B, thus avoding tranes theposition of the said trolley-wheels friction. Thus all cramping of thetrolleyin the track A. The lower end of said hanger wheels in theircracks is wholly avoided, the 45 D is screw-threaded, as shown.durability of the operative parts is greatly E indicatesapart of theupper end of a door increased, and the suspended object is more 01similar object, and H a metal plate let into free to adjust itself t0i1;s proper position. said end and ohere retained by screws, as It isobvious that many of the advantages shown. Under said plate is formed inthe of the above-described construetion may be 50 door a socket I. Onthe under side of said enjoyed if the said bearings-balls be omittedplate H are secured two lugs J J, each shown fr0m between the nut K and.plate H.

Hafing thus descrbed 1ny nventon, what I claim, a11d des1e to secure byLetters Patent, is

1. A trolley-wheel hanger consstng of a screwthreaded shank,bearing-wheels applied to the upper end of the shank, and the track uponwhich the wheels run, combined with a perforated plate applied to thetop edge of the (1001, a nut appled to the screwthreaded shank aftertsend has been passed through the plate, the ball-bearngs between theplate and the nu'o and the lugs f01 preventng any endwise m0wament ofthe shank and nut, substantially as shown.

2. A trolley-wheel hanger havng a screw-

